Cat-scratch disease

This code represents cat-scratch disease, also known as bartonellosis or lymphoreticulosis. It is a bacterial infection, typically caused by Bartonella henselae, characterized by regional lymphadenopathy following a scratch or bite from a cat, especially kittens. Patients may also experience fever, malaise, and a papule or pustule at the inoculation site.

Use this code when documentation confirms a diagnosis of cat-scratch disease, often supported by a history of cat exposure and characteristic lymph node swelling. This diagnosis is typically made clinically, but serologic testing or biopsy may confirm the presence of Bartonella henselae.

• Ensure documentation specifies "cat-scratch disease" or provides sufficient detail to rule out other causes of lymphadenopathy.
• Do not confuse with other bacterial infections or generalized lymphadenopathy without a clear etiology.
• Consider sequencing this code as the primary diagnosis when it is the reason for the encounter.